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Finding the Fourth Proportional to 373.59, 557.87 and 305.25

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Solution

The fourth proportional to 373.59, 557.87 and 305.25 is: 455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.59 : 557.87 = 305.25 : x
  2. Step 2: Convert to fraction form
    373.59/557.87 = 305.25/x
  3. Step 3: Cross multiply
    373.59x = 557.87 × 305.25
  4. Step 4: Simplify right side
    373.59x = 170,289.82
  5. Step 5: Solve for x
    x = 170,289.82/373.59
  6. Step 6: Final answer
    x = 455.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.